Abstract: A wastewater treatment system has a tank and at least one baffle disposed in the tank so as to subdivide the tank to form a treatment chamber and a clarification or settling chamber. The baffle is inclined relative to vertical, so that the clarification chamber tapers from an upper end to a lower end. The lower end of the clarification chamber is provided with a plurality of mutually spaced orifices or apertures communicating with a lower region of the treatment chamber, so that sludge settling in the clarification chamber is directed to the lower region of the treatment chamber via the orifices. The clarification chamber is further provided at its lower end with a plurality of substantially vertical partitions defining a plurality of hoppers communicating with respective orifices for guiding sludge to the orifices. A recycle pump and a distribution manifold serve to recycle wastewater from the treatment chamber to the clarification chamber.

Abstract: A projection cathode ray tube has a target that is mechanically adjustable by means external to the evacuated envelope. The target extends into the evacuated space and is mounted upon a bellows that forms part of the envelope. The target is moved relative to other optical elements within the envelope by means extending through the bellows to provide both axial and pivotal adjustment after the tube is sealed. This structure enables other optical components including image reflectors to be constructed integrally with the envelope, and also improves heat transfer between the target and the external space, permitting control of the target temperature.

Abstract: A phonograph preamplifier network with infrasonic cutoff response. In one form, the preamplifier network is a single stage active filter configuration with a high gain, high input impedance differential amplifier provided with an RIAA equalization feedback filter network coupled between the amplifier output and inverting input. An RC filter network is coupled between the inverting amplifier input and ground potential to provide a single, low frequency real axis pole. In addition, an input filter feedback network is coupled between the preamplifier input terminal and the non-inverting input of the amplifier, and further boot-strapped to the amplifier inverting input. The network provides a pair of low frequency off-axis complex poles.

Abstract: A phonograph preamplifier network with infrasonic cutoff response. The preamplifier network is an active filter configuration with a high gain, high input impedance differential amplifier provided with an RIAA equalization feedback filter network coupled between the amplifier output and inverting input. An RC filter network is coupled between the inverting amplifier input and ground potential to provide a single, low frequency real axis pole. In addition, an input filter feedback network is coupled between the preamplifier input terminal and the non-inverting input of the amplifier, and further bootstrapped to the amplifier inverting input. The network provides a pair of low frequency off-axis complex poles.

Abstract: A color projection television receiver and projector having three color tubes mounted in fixed relation and in predetermined location relative to a screen for projecting three color pictures in registration thereon. Accurate registration of the pictures results from a projection tube structure adapted for accurate reproducability in production, whereby field adjustment is minimized. The tube structure employs a mounting barrel accurately suspended within the evacuated envelope and supporting a phosphor-coated target and a projection mirror. A Schmidt correction lens is mounted externally to the envelope of each tube.

Abstract: A color projection television receiver and projector having three color tubes mounted in fixed relation and in predetermined location relative to a screen for projecting three color pictures in registration thereon. Accurate registration of the pictures results from a projection tube structure adapted for accurate reproducability in production, whereby field adjustment is minimized. The tube structure employs a mounting barrel accurately suspended within the evacuated envelope and supporting a phosphorcoated target and a projection mirror. A Schmidt correction lens is mounted externally to the envelope of each tube.